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Fencer Vulns
high 8.4

CVE-2017-16927 json

The scp_v0s_accept function in sesman/libscp/libscp_v0.c in the session manager in xrdp through 0.9.4 uses an untrusted integer as a write…

published 2017-11-23 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-8097

cvss
8.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

The scp_v0s_accept function in sesman/libscp/libscp_v0.c in the session manager in xrdp through 0.9.4 uses an untrusted integer as a write length, which allows local users to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted input stream.

Patch / fix

  • xrdp Debian 14, Debian 13, Debian 12 0.9.4-3

debian advisories DEBIAN-CVE-2017-16927

  • xrdp Ubuntu Pro 14.04 LTS 0.6.0-1ubuntu0.1+esm1
  • xrdp Ubuntu Pro 16.04 LTS 0.6.1-2ubuntu0.3+esm1

ubuntu advisories UBUNTU-CVE-2017-16927

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • xrdp SLES for SAP 12 SP2, SLES 12 SP2-LTSS, OpenStack Cloud 7 +1 more 0.9.0~git.1456906198.f422461-16.9.3
  • xrdp SLES for SAP 12 SP4, SLES 12 SP4, SLED 12 SP4 0.9.0~git.1456906198.f422461-21.9.1

suse advisories SUSE-SU-2019:1860-1SUSE-SU-2019:1847-1

  • xrdp openSUSE Tumbleweed 0.9.15-2.2

opensuse advisories openSUSE-SU-2024:11526-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-16927 updated cvss 5.5

xrdp: Buffer-overflow in scp_v0s_accept function in session manager

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 8.4 CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.